Monitor not turning on and no power- Dell E198FP

A little over a year ago, I bought a Dell E198FP monitor and the screen went black and the green power light went off. Power cords are working and everything is connected. Rechecked plugs and green light does not go on. I unscrewed 4 screws but I cannot get the panel off. Any suggestions?

Does anyone know if there any fuses or bulbs that can be replaced??..??Thanks beau1121.

Does anyone know if there any fuses or bulbs that can be replaced??..??

AnonymousApr 02, 2009

I turned off the monitor at night. When I attempted to turn it on the next morning it would not power on. No green or amber light. The power cord is properly attached and plugged into a good power source.I turned off the monitor at night. When I attempted to turn it on the next morning it would not power on. No green or amber light. The power cord is properly attached and plugged into a good power source.

The same problem - powered done at night as normal - absolutely nothing happening with the monitor this morning - out of warranty - just. I guess a new one is the only solution.The same problem - powered done at night as normal - absolutely nothing happening with the monitor this morning - out of warranty - just. I guess a new one is the only solution.

It can be a bit of a challenge to get the plastic bezel apart but those are in fact the only four screws...Once you find the "tabs" holding the two halves of the bezel together it's actually pretty easy. I suggest taking a putty knife and GENTLY prying at the seam until you find the tabs.

I suspect you will find that there are bad capacitors on the power supply board. There are two that I have found that typically fail (680 microfarad, 16 volt). They usually "bulge" on top after failing. I have found that the replacement value doesn't seem to be too critical. I wish I had written down the actual designators for these caps (maybe next time I repair one of these monitors). If you aren't handy with a soldering iron, however, I would not recommend this repair. It can be easy to permanently damage things. If you aren't afraid of that, however, give it a try.

WARNING! DISCONNECT POWER BEFORE DISASSEMBLING THE MONITOR AND DO NOT RECONNECT POWER UNTIL ALL SHIELDING IS REINSTALLED!!! DANGEROUS LINE VOLTAGE WILL BE EXPOSED!!!

Once you get the bezel apart and get down to the metal shielding, slide the shield on the right hand side to remove (arrows pointing to each other). There will be four connectors underneath this shield to power the backlight. Disconnect these four connectors, paying close attention to where they were connected.

Disconnect the small ribbon cable on the other side connecting to the front panel controls...There is a small black tab that will flip up to allow removal of the ribbon cable. CAUTION! THESE CABLES ARE DELICATE...DAMAGING THE CABLE OR THE CONNECTOR WILL DESTROY YOUR MONITOR.

There are four screws holding the power supply section to the LCD itself (two on each side). Once you remove these screws the rear shield (and power supply section) will start to separate from the LCD. There is another ribbon cable between the power supply section and the LCD panel...AGAIN...DO NOT DAMAGE THIS CABLE OR CONNECTOR! Squeeze the two black tabs on either side of this connector to remove.

You should now have the power supply board exposed. Remove the screws securing the power supply board to the shield. You will need to disconnect the connector attaching the AC power inlet to the board in order to access the top side...

The failed capacitors should be readily apparent. Replace them, re-assemble and test.

Condensator? Do you mean capacitor?
I have the same problem with my monitor. However, I opened up everything and all the capacitor on the power/invertor board looks good. I measured the output of the power board and there are 3.3V and 5V. I am not sure if this is how it supposed to be.
I am thinking may be the reset control circuit on the display board is bad.

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Probally the failure is due to the inverter power supply. Take a flashlight and shine it to the screen, if you can see an image, then the problem is with the power supply. The failure could be blown capacitors or transistors. An electronics repair shop should be able to fix it.

disconnect all the cable from the monitor except the power cable .
see if you see any test screen and keep it on ,if the test screen blacks out you monitor is bad ,better buy a new one as usually repairs cud be expensive

A couple of things to check. First make sure that all the connections are in place. That is, the one at the PC and the one on the back of the monitor. Second - Make sure that the video card is seated correctly in the PC. Third - Replace the monitor cable. Fourth - Check with another monitor, if possible.

Same with mine a couple days ago. I've been told the contacts have oxidized and need to be cleaned. It was going to cost about $80 to fix and no guarantee how long it would last so I just bought a new monitor.